<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 搜索框区域 -->
    <el-row :gutter="20">
      <el-col :span="8">
        <el-input
          placeholder="请输入内容"
          v-model="queryInfo.query"
          clearable
          @clear="getGoodsList"
        >
          <el-button
            slot="append"
            icon="el-icon-search"
            @click="getGoodsList"
          ></el-button>
        </el-input>
      </el-col>
      <el-col :span="4">
        <el-button type="primary" @click="goAddPage">添加商品</el-button>
      </el-col>
    </el-row>

    <!-- 表格区域 -->
    <el-table :data="goodslist" border stripe>
      <el-table-column type="index" label="#"></el-table-column>
      <el-table-column label="商品名称" prop="goods_name"></el-table-column>
      <el-table-column
        label="商品价格(元)"
        prop="goods_price"
        width="95px"
      ></el-table-column>
      <el-table-column
        label="商品重量"
        prop="goods_weight"
        width="70px"
      ></el-table-column>
      <el-table-column label="创建时间" prop="add_time" width="140px">
        <template slot-scope="scope">
          {{ scope.row.add_time | dateFormat }}
        </template>
      </el-table-column>
      <el-table-column label="操作" width="140px">
        <template slot-scope="scope">
          <el-button type="primary" icon="el-icon-edit" size="mini"></el-button>
          <el-button
            type="danger"
            icon="el-icon-delete"
            size="mini"
            @click="deleteById(scope.row.goods_id)"
          ></el-button>
        </template>
      </el-table-column>
    </el-table>

    <!-- 分页区域 -->
    <el-pagination
      @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
      :current-page="queryInfo.pagenum"
      :page-sizes="[5, 10, 15, 20]"
      :page-size="queryInfo.pagesize"
      layout="total, sizes, prev, pager, next, jumper"
      :total="total"
      background
    >
    </el-pagination>
  </div>
</template>

<script>
export default {
  data() {
    return {
      //商品列表数据
      goodslist: [],
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 10,
      },
      //总条数
      total: 0,
    }
  },
  created() {
    this.getGoodsList()
  },
  methods: {
    //获取商品列表数据
    async getGoodsList() {
      const { data: res } = await this.$http.get('goods', {
        params: this.queryInfo,
      })
      if (res.meta.status !== 200) {
        return this.$message.error('获取商品列表数据失败！')
      }
      this.goodslist = res.data.goods
      this.total = res.data.total
    },

    /**
     * 分页修改
     */
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      this.getGoodsList()
    },
    handleCurrentChange(page) {
      this.queryInfo.pagenum = page
      this.getGoodsList()
    },

    //删除商品
    async deleteById(id) {
      const confirmResult = await this.$confirm(
        '此操作将永久删除该商品, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning',
        }
      ).catch((error) => error)
      if (confirmResult !== 'confirm') {
        return this.$message.info('取消删除该商品')
      }
      const { data: res } = await this.$http.delete(`goods/${id}`)
      if (res.meta.status !== 200) {
        return this.$message.error('删除商品失败！')
      }
      this.$message.success('删除商品成功！')
      this.getGoodsList()
    },

    //通过编程式导航跳转到添加商品页面
    goAddPage() {
      this.$router.push('/goods/add')
    },
  },
}
</script>

<style lang="less" scoped>
</style>